public static SignatureContext Parse(string value)
{
JObject json = JObject.Parse(value);
string typename = string.Format("{0}.{1}", typeof(SignatureContext).Namespace, json["type"].AsString());
ISignable signable = Assembly.GetExecutingAssembly().CreateInstance(typename) as ISignable;
signable.FromUnsignedArray(json["hex"].AsString().HexToBytes());
SignatureContext context = new SignatureContext(signable);
JArray multisignatures = (JArray)json["multi_signatures"];
for (int i = 0; i < multisignatures.Count; i++)
{
if (multisignatures[i] != null)
{
context.signatures[i] = new MultiSigContext(multisignatures[i]["redeem_script"].AsString().HexToBytes());
JArray sigs = (JArray)multisignatures[i]["signatures"];
for (int j = 0; j < sigs.Count; j++)
{
if (sigs[j] != null)
{
context.signatures[i].signatures[j] = sigs[j].AsString().HexToBytes();
}
}
}
}
return context;
}
public static SignatureContext Parse(string value)
{
JObject json = JObject.Parse(value);
string typename = string.Format("{0}.{1}", typeof(SignatureContext).Namespace, json["type"].AsString());
ISignable signable = Assembly.GetExecutingAssembly().CreateInstance(typename) as ISignable;
using (MemoryStream ms = new MemoryStream(json["hex"].AsString().HexToBytes(), false))
using (BinaryReader reader = new BinaryReader(ms, Encoding.UTF8))
{
signable.DeserializeUnsigned(reader);
}
SignatureContext context = new SignatureContext(signable);
JArray multisignatures = (JArray)json["multi_signatures"];
for (int i = 0; i < multisignatures.Count; i++)
{
if (multisignatures[i] != null)
{
context.signatures[i] = new MultiSigContext(multisignatures[i]["redeem_script"].AsString().HexToBytes());
JArray sigs = (JArray)multisignatures[i]["signatures"];
for (int j = 0; j < sigs.Count; j++)
{
if (sigs[j] != null)
{
context.signatures[i].signatures[j] = sigs[j].AsString().HexToBytes();
}
}
}
}
return context;
}
private void button2_Click(object sender, EventArgs e)
{
Block block = new Block
{
PrevBlock = UInt256.Zero,
Timestamp = DateTime.Now.ToTimestamp(),
Height = 0,
Nonce = 2083236893, //向比特币致敬
NextMiner = Contract.CreateMultiSigContract(Blockchain.GetMinSignatureCount(Blockchain.StandbyMiners.Length), Blockchain.StandbyMiners).ScriptHash,
Transactions = new Transaction[]
{
new GenerationTransaction
{
Nonce = 0,
Inputs = new TransactionInput[0],
Outputs = new TransactionOutput[0],
Scripts = { }
},
textBox3.Text.HexToBytes().AsSerializable<RegisterTransaction>()
}
};
block.RebuildMerkleRoot();
SignatureContext context = new SignatureContext(block.Header);
InformationBox.Show(context.ToString(), "创世区块头签名上下文");
}
public static SignatureContext Parse(string value)
{
JObject json = JObject.Parse(value);
string typename = string.Format("{0}.{1}", typeof(SignatureContext).Namespace, json["type"].AsString());
ISignable signable = Assembly.GetExecutingAssembly().CreateInstance(typename) as ISignable;
using (MemoryStream ms = new MemoryStream(json["hex"].AsString().HexToBytes(), false))
using (BinaryReader reader = new BinaryReader(ms, Encoding.UTF8))
{
signable.DeserializeUnsigned(reader);
}
SignatureContext context = new SignatureContext(signable);
JArray scripts = (JArray)json["scripts"];
for (int i = 0; i < scripts.Count; i++)
{
if (scripts[i] != null)
{
context.redeemScripts[i] = scripts[i]["redeem_script"].AsString().HexToBytes();
context.signatures[i] = new Dictionary<ECPoint, byte[]>();
JArray sigs = (JArray)scripts[i]["signatures"];
for (int j = 0; j < sigs.Count; j++)
{
ECPoint pubkey = ECPoint.DecodePoint(sigs[j]["pubkey"].AsString().HexToBytes(), ECCurve.Secp256r1);
byte[] signature = sigs[j]["signature"].AsString().HexToBytes();
context.signatures[i].Add(pubkey, signature);
}
}
}
return context;
}
private async Task ShowInformationAsync(SignatureContext context)
{
if (context.Completed)
{
context.Signable.Scripts = context.GetScripts();
Transaction tx = (Transaction)context.Signable;
await Program.LocalNode.RelayAsync(tx);
InformationBox.Show(tx.Hash.ToString(), "交易已发送，这是交易编号(TXID)：", "交易成功");
}
else
{
InformationBox.Show(context.ToString(), "交易构造完成，但没有足够的签名：", "签名不完整");
}
}
public void Sign(Block block, ECPoint[] miners)
{
SignatureContext context = new SignatureContext(block);
Contract contract = MultiSigContract.Create(null, miners.Length / 2 + 1, miners);
foreach (ECPoint pubKey in miners)
{
UInt160 publicKeyHash = pubKey.EncodePoint(true).ToScriptHash();
Account account = GetAccount(publicKeyHash);
if (account == null) continue;
byte[] signature = block.Sign(account);
context.Add(contract, account.PublicKey, signature);
}
block.Script = context.GetScripts()[0];
}
private void button1_Click(object sender, EventArgs e)
{
RegisterTransaction antshare = new RegisterTransaction
{
AssetType = AssetType.AntShare,
Name = "[{'lang':'zh-CN','name':'小蚁股'},{'lang':'en','name':'AntShare'}]",
Amount = Fixed8.FromDecimal(numericUpDown1.Value),
Issuer = textBox1.Text.ToScriptHash(),
Admin = textBox2.Text.ToScriptHash(),
Inputs = new TransactionInput[0],
Outputs = new TransactionOutput[0]
};
SignatureContext context = new SignatureContext(antshare);
InformationBox.Show(context.ToString(), "小蚁股签名上下文");
}
private void button1_Click(object sender, EventArgs e)
{
RegisterTransaction antshare = new RegisterTransaction
{
AssetType = AssetType.AntShare,
#if TESTNET
Name = "[{'lang':'zh-CN','name':'小蚁股(测试)'},{'lang':'en','name':'AntShare(TestNet)'}]",
#else
Name = "[{'lang':'zh-CN','name':'小蚁股'},{'lang':'en','name':'AntShare'}]",
#endif
Amount = Fixed8.FromDecimal(numericUpDown1.Value),
Issuer = ECPoint.Parse(textBox1.Text, ECCurve.Secp256r1),
Admin = Wallet.ToScriptHash(textBox2.Text),
Attributes = new TransactionAttribute[0],
Inputs = new TransactionInput[0],
Outputs = new TransactionOutput[0]
};
SignatureContext context = new SignatureContext(antshare);
InformationBox.Show(context.ToString(), "小蚁股签名上下文：");
}
private void 资产分发IToolStripMenuItem_Click(object sender, EventArgs e)
{
using (IssueDialog dialog = new IssueDialog())
{
if (dialog.ShowDialog() != DialogResult.OK) return;
IssueTransaction tx = dialog.GetTransaction();
if (tx == null) return;
//TODO: 检查是否符合规则，如是否超过总量、分发方式是否符合约定等；
SignatureContext context = new SignatureContext(tx);
Program.CurrentWallet.Sign(context);
if (context.Completed)
{
context.Signable.Scripts = context.GetScripts();
InformationBox.Show(context.Signable.ToArray().ToHexString(), "分发交易构造完成，并已完整签名，可以广播。");
}
else
{
InformationBox.Show(context.ToString(), "分发交易构造完成，但签名信息还不完整。");
}
}
}
public bool Sign(SignatureContext context)
{
bool fSuccess = false;
foreach (UInt160 scriptHash in context.ScriptHashes)
{
Contract contract = GetContract(scriptHash);
if (contract == null) continue;
Account account = GetAccountByScriptHash(scriptHash);
if (account == null) continue;
byte[] signature;
using (account.Decrypt())
{
signature = context.Signable.Sign(account.PrivateKey, account.PublicKey);
}
fSuccess |= context.Add(contract.RedeemScript, ECPoint.FromBytes(account.PublicKey, ECCurve.Secp256r1), signature);
}
return fSuccess;
}
private async void 资产分发IToolStripMenuItem_Click(object sender, EventArgs e)
{
using (IssueDialog dialog = new IssueDialog())
{
if (dialog.ShowDialog() != DialogResult.OK) return;
Transaction tx = dialog.GetTransaction();
if (tx == null) return;
SignatureContext context = new SignatureContext(tx);
Program.CurrentWallet.Sign(context);
await ShowInformationAsync(context);
}
}
private async void 注册资产RToolStripMenuItem_Click(object sender, EventArgs e)
{
using (AssetRegisterDialog dialog = new AssetRegisterDialog())
{
if (dialog.ShowDialog() != DialogResult.OK) return;
Transaction tx = null;
try
{
tx = dialog.GetTransaction();
}
catch
{
MessageBox.Show("数据填写不完整，或格式错误。");
return;
}
if (tx == null)
{
MessageBox.Show("余额不足以支付系统费用。");
return;
}
SignatureContext context = new SignatureContext(tx);
Program.CurrentWallet.Sign(context);
await ShowInformationAsync(context);
}
}
public bool Sign(SignatureContext context, byte[] redeemScript)
{
return context.Add(redeemScript, PublicKey, Sign(context.Signable));
}
public bool Sign(SignatureContext context)
{
bool fSuccess = false;
for (int i = 0; i < context.ScriptHashes.Length; i++)
{
WalletEntry entry = GetEntry(context.ScriptHashes[i]);
if (entry == null) continue;
for (int j = 0; j < entry.PrivateKeys.Length; j++)
{
byte[] signature;
using (entry.Decrypt(j))
{
signature = context.Signable.Sign(entry.PrivateKeys[j], entry.PublicKeys[j]);
}
fSuccess |= context.Add(entry.RedeemScript, Secp256r1Point.FromBytes(entry.PublicKeys[j]), signature);
}
}
return fSuccess;
}
public bool Sign(SignatureContext context)
{
bool fSuccess = false;
foreach (UInt160 scriptHash in context.ScriptHashes)
{
Contract contract = GetContract(scriptHash);
if (contract == null) continue;
Account account = GetAccountByScriptHash(scriptHash);
if (account == null) continue;
byte[] signature;
using (account.Decrypt())
{
signature = context.Signable.Sign(account.PrivateKey, account.PublicKey.EncodePoint(false).Skip(1).ToArray());
}
fSuccess |= context.Add(contract.RedeemScript, account.PublicKey, signature);
}
return fSuccess;
}
